def test_transfer_eth_to_ceth_over_limit(
basic_transfer_request: EthereumToSifchainTransferRequest,
source_ethereum_address: str,
rowan_source_integrationtest_env_credentials: SifchaincliCredentials,
rowan_source_integrationtest_env_transfer_request: EthereumToSifchainTransferRequest,
):
basic_transfer_request.ethereum_symbol = "eth"
basic_transfer_request.ethereum_address = source_ethereum_address
basic_transfer_request.amount = 35 * 10 ** 18
with pytest.raises(Exception):
basic_transfer_request.ethereum_address = source_ethereum_address
generate_test_account(
basic_transfer_request,
rowan_source_integrationtest_env_transfer_request,
rowan_source_integrationtest_env_credentials,
target_ceth_balance=50 * 10 ** 19,
)
def test_rollback_chain(source_ethereum_address):
new_account_key = get_shell_output("uuidgen")
credentials = sifchain_cli_credentials_for_test(new_account_key)
new_account = burn_lock_functions.create_new_sifaddr(
credentials=credentials, keyname=new_account_key)
credentials.from_key = new_account["name"]
# Any amount will work
amount = 11000
request = EthereumToSifchainTransferRequest(
sifchain_address=new_account["address"],
smart_contracts_dir=get_required_env_var("SMART_CONTRACTS_DIR"),
ethereum_address=source_ethereum_address,
ethereum_private_key_env_var="ETHEREUM_PRIVATE_KEY",
bridgebank_address=get_required_env_var("BRIDGE_BANK_ADDRESS"),
ethereum_network=(os.environ.get("ETHEREUM_NETWORK") or ""),
amount=amount)
logging.info(f"create account with a balance of {request.amount}")
burn_lock_functions.transfer_ethereum_to_sifchain(request, 50)
new_addr = new_account["address"]
snapshot = get_shell_output(
f"{test_integration_dir}/snapshot_ganache_chain.sh")
logging.info(f"created new account, took ganache snapshot {snapshot}")
initial_user_balance = get_sifchain_addr_balance(new_addr, "",
request.sifchain_symbol)
logging.info(f"initial_user_balance {initial_user_balance}")
transfer_1 = send_from_ethereum_to_sifchain(transfer_request=request)
logging.info(f"transfer started but it will never complete (by design)")
logging.info("advance less than wait blocks")
advance_n_ethereum_blocks(n_wait_blocks / 2, request.smart_contracts_dir)
# the transaction should not have happened on the sifchain side yet
# since we haven't waited for the right number of blocks.
# roll back ganache to the snapshot and try another transfer that
# should succeed.
logging.info(
f"apply snapshot {snapshot} - this eliminates transfer_1 (block {transfer_1})"
)
get_shell_output(
f"{test_integration_dir}/apply_ganache_snapshot.sh {snapshot} 2>&1")
logging.info("advance past block wait")
advance_n_ethereum_blocks(n_wait_blocks * 2, request.smart_contracts_dir)
time.sleep(5)
second_user_balance = get_sifchain_addr_balance(new_addr, "",
request.sifchain_symbol)
if second_user_balance == initial_user_balance:
logging.info(
f"got expected outcome of no balance change @ {initial_user_balance}"
)
else:
raise Exception(
f"balance should be the same after applying snapshot and rolling forward n_wait_blocks * 2. initial_user_balance: {initial_user_balance} second_user_balance: {second_user_balance}"
)
request.amount = 10000
logging.info(f"sending more eth: {request.amount} to {new_addr}")
burn_lock_functions.transfer_ethereum_to_sifchain(request)
# We want to know that ebrelayer will never do a second transaction.
# We can't know that, so just delay a reasonable amount of time.
logging.info("delay to give ebrelayer time to make a mistake")
time.sleep(10)
balance_after_sleep = get_sifchain_addr_balance(new_addr, "",
request.sifchain_symbol)
logging.info(
f"get_sifchain_addr_balance after sleep is {balance_after_sleep} for {new_addr}"
)
expected_balance = initial_user_balance + request.amount
logging.info(f"look for a balance of {expected_balance}")
wait_for_sifchain_addr_balance(new_addr, request.sifchain_symbol,
expected_balance, "")